1 3/4" 1.75 inch Flush Mount Black Plastic Body and Sheet Metal Hole Plug Qty 10 (Pack of 10) 1 3/4" 1.75 inch CAPLUGS Flush Mount Black Plastic Body and Sheet Metal Hole Plugs Head Diameter 2 1/8" - for Panel Thickness 0.03"-0.08". Overall Height 1/4"